Cooling, cleansing, and filtering device for gas



I 0. 1. SMITH. COOLING, CLEANSING, AND FILTERING DEVICE FOR GAS.

APPLXCATIDN FILED DEC. 2, 1918.

Patented Jan. 3, 1922.

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v D. J. SMITH. 4' COOLING, CLEANSING, AND FILTERING DEVICE FOR GAS.

7 APPLICATION FILED DEC-2.1918- 1,402,676. 7 Patented Jan. 3,1922.

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j'zzz/elzfai' am 1 52 5 Z371 U ITE STATES PATENT oFFics.

DAVID :rosnrrr SMITH, or Lonnon, ENGLAND, ASSIGN'OB, BY MESNE ASSIGNMENTS, T0 AUTOMOTIVE ens PRODUCER coarona'rron, A conroan'rron or DELAWARE.

COOLING, CLEANSING, AND FILTERING DEVICE FOR GAS.

Laoas zs.

To all whom it may concern Be it known that I, Dav n Josnrn SMITH, major in the Army Service Corps, a subject of the King ofGreatBritain, and a resident of 40' V'Voodberry Grove, Finsbury Park, London, N. 4.,England, have invented new and useful Improvements in or Connected with Cooling,Cleansing, and FilteringDevices for Gas, of which the following is-the specification.

This invention relates to improvements in apparatus which is generally known as a sired degree. The apparatus according to this invention comprises threemain parts or divisions, which I term a feed heater or preliminaryfcooler, the cooler proper, and the filter respectively. In its simplest form the device consists of two boxes or headers, preferably of-cast metal and fitted with removable-lids, bolted or otherwise secured'in 'an airtight'imanner. Theboxes are connectted bytubesbr sets oftubesarranged vertically between the headers. The gas from the producer or'othersource of gas supply enters a chamber formed at one end of a header, and passes through a tube or tubes, preferably of copper to the other header.

Around this tube or tubes a jacket is fitted which is watertight and does'not communicate with either the top or bottom header.

Through the jacket, water is caused to pass either by a pump or other suitable means, 1n order that it mayin cooling the gases in the tube become: heated before passing to the steam'boiler or vapour generator of the producer, or be otherwise employed on the producer, orrun to waste.- l

When the gas. has arrived in the other I header through the feed heating or prelimi- -nary cooling tubesyit passes through one or to be directed upon the tubes if desired by suitable sheet metal orother material plates v Specification of Letters Patent. Patented Jan 3, 1922,

Application filed December 2, 1918. Serial No. 265,044.

or bafiles arranged around the tubes. Air.

two headers, fitted with long conical gauze strainers or tunnels, removable as hereafter 'descrlbed. The gas passing up through these gauze strainers has all dust or other material in suspension removed, and then passes to the engine or to any other purpose for which it may be required. In place of gauze or metal filters or strainers, coke or similar material may be used, or other material suitable for straining or filtering the gases. In the headers a number-of vertical plates are fitted, against which the gas inipinges as afterwarddescribed. The tubes constituting the parts of elements or the de- Vice may be expanded, brazed, screwed or held into the boxes by any suitable method. or shoulders maybe formed on each end'of the tubes.

' In the accompanying drawings I have shown the preferred embodiment of the invention, but it will be understood that considerable modification may be made in the constructional details 1 without departing from the scope of the invention. g I

Fig. l is a part sectional elevation ofthe apparatus. 1 p I ig. 2 is a plan ofsame.

Fig. 3 is an end view of same.

Fig. 5 is a detail viewto alarger scale showing the filtering tube.

Fig. 6 is a detail view to a larger scale of a portion ofFigJ. p

Referring to *igs. 1, 2, 3, and l, A 1sv the top header and B the bottom header. The pipe supplying the gas from the gas producer or the like to. be cooled and cleaned is fitted to the inlet G. The internal combustion engine or heating apparatus to which the gas is to be supplied is connected to the outlet flanged end D. The gases on entering the apparatus, see Flgs. 1 and 6,

strike against the downwardly projecting plates or ribs I in order to cause the separation of and deposit of anysolid particles or sediment or tarry matter, the partition L forming a closure in the header A. The pre- 9O Fig. 4 is a detail View showing in section a modified construction.

7 B above and below respectively, and is provided with a jacket tube F concentrically arranged therewith. The jacket tube F is fittedin recessed grooves in both headers as shown, a rubber ring F being fitted' at each end of the jacket tube in each header in order to allowot expansion of thetube F relatively to the inner tube E and at the same time prevent leakage of water from the jacket. The jacket is provided in order to heat the feed water" forthe boiler'of the gas roducer, the water being supplied to the eed heating jacket by a pump to the inlet G and leaves same on its return to the boiler at the outlet H.

The producer gases on leaving the tube E are caused to impinge'on a similar set of upwardly projecting plates or ribs I shown to a larger scale in Fig. 6. which are se-.

' cured to or integrally formed'with the plate J fitting over a similar aperture in the bottom header B. From the header B which is closed by the partition L the gases then pass through a nest or 'groupof tubes K which are secured in the headers. A and B.

From the header A the gases are then caused to pass down the second nest or group of tubes K where they again impinge upon the upwardly projecting plates or ribs I which plates are secured to the cover J fitting the aperturefas shown, in the header B. The header B is closed by the partition L and the gases are therefore caused to pass upwardly again by the nest or group of tubes K to the header A and there being a further partition or closure at L, the gases ass downwardly through the nest of tubes {3 again to the header B, thence the gases'may pass through either one or .both

of the filter tubes M, M, 'to the final compartment A of the header A, The filter tubes M are extended through each of the headers A and B totheupper wall of the header A and to the lowerwall of the header B. Each filter tube has fitted therein a tapered or conical tube N formed of wire gauze closed-at the upper end and secured at the lower end in the wall of the header B by means of the cover plates 0, see detail view 5, which cover platesO are held 1n posit on by the two-armed nut 0 see Fig.

1. The wire gauze tube is formed with a lateral flange on its'lower end which is litted between the coverxplate O and the flange Q} of the tube Q, which is adapted to be turned by hand as desired within the filter tube. M. The short length of tube Q is a gas-tight fit within the tubeM so that the port R formed 1n the tube Q, may be caused thus provided between the of the projecting flange Q iormed'integrally therewith,'see Fig. 5. When the ports R and R in the tubes register, the gases pass through into the gauze tube N and through the tapered area of this tube above the valve into the tube M, and thence outwardly to the engine by the outlet pipe D. Provision is thus made by which either of the filter tubes N. maybe removed for cleaning purposes without stopping the working ofthe' apparatus, for on turning by hand the flange Q}, the port R can be turned to a right angle to the dotted position shown in Fig. 5, thus closing the tube M, and the filter tube N can then be withdrawn to. be cleaned, the apparatus continuing to work through the second suction filter tube M Similar valves Q with ports such as R, R

areprovided in the tubes M, M attheir upper ends for the same purpose. 7 a A suitable fan (not'shown) may be used to force or draw the gases through the banks of tubes K, K K K and through both'of or one of the filter tubes M, in order to assist in overcoming the frictional resistance in passing the producer gases through these tubes. Oralternatively, air may be de flected or driven upon the nest of tubes K,

K K K by means of suitable casings or baflle plates, not shown, in order 1 to cool same. 1

Referring to Fig. 4, as a further means of cooling some or all of the nests of tubes K, each tube K or some of them may have fitted concentrically through sameaf tube P. This tube extends not onlythrough the tube K but also through the headers A and Band is'se'cured in the upper and lowerwalls of same respectively, so that each tubeP being open to the atmosphere air may 'passfreely throughthe tubes P and cool the gases flowing through the tube K in'the' annular space tubes P and the tubes K. I I

Cover or closing plates J J, are also provided on the header A in order torender the nests or groups of tubes accessible for cleaning purposes,

'VVhatI do claim as my invention and desire to secure by Letters Patent is 1. Acooling, cleansing andfiltering device for gas, comprising upper and lower headers, groups of radiator tubes connecting said headers, partitions in saidheaders for cans; ing gases to pass successively through one group of said tubes and thence in the opposite direction through the next adjacent group of tubes into the opposite header, batfie plates in said headers beyond saidgroups of radiator tubes, and tubes containinfiltering material and communicating wit the headers; r

2. A cooling, cleansing and filtering' device for gas, comprising upper and lower headers, radiator tubes connecting the headers filtering tubes connecting said headers at one end, said filtering tubes being each provided with means for establishing communi cation with the headers or cutting off communication therewith, and removable filtering material supported in the respective filtering tubes.

In a device of the character described, upper and lower headers, tubes connecting the headers, said tubes having ports opening into the lower headers, filtering material in the said tubes, and short tubes mounted to turn in the first named tubes and each provided with a port adapted to register with the port of said tubes.

4;. In a device of the character described, upper and lower headers, the lower header having openings in its outer wall, tubes arranged over openings in the lower headers and connecting the headers and having communication therewith, means for controlling the communication of the tubes with the lower header, filtering tubes in the first named tubes, cover plates for the openings of the lower header, and means for securing the cover plates in position.

5. In a device of the character described, upper and lower headers having openings in their outer walls, and closures for closing said openings, provided with a plurality of plates projecting from their inner faces, and a plurality of tubes connecting the headers.

6. A cooling, cleansing and filtering device for gas, comprising an upper and a lower header, a series of radiator tubes connecting said headers, partitions in said headers causing the gas to pass successively through said radiator tubes, and tubes connecting said headers at each end of said radiator tubes forming respectively a preliminary cooling chamber and filtering chambers, removable filtering material in the fil tering tubes, and means for supporting said material through which the gas finally passes, the gas being subjected to a prelimithe filtering material, substantially as described.

V D. J. SMITH, MAJOR. 

